Solved: iPhone 7 Plus compass abnormal issue

A buyer despatched us an iPhone 7 Plus wish to be repaired, the issue is that the iPhone 7 Plus compass no longer operating, it’s abnormal. 

After we gained the iPhone 7 Plus, get into IOS to check the iPhone compass serve as, it does not paintings.
Disassemble the iPhone 7 Plus through telephone opening equipment, take out the iPhone motherboard. The look of iPhone motherboard seems to be excellent, however there are strains of moldy across the gyroscope.
Carefully blank up the moldy spaces, after which attach it to DC energy provide, it boots in most cases. Install the iPhone, and check it, the whole lot is okay, excluding the compass.
For this situation, some folks will assume it is the compass drawback, and it may be fastened through changing the brand new compass; some folks will assume that the gyroscope is digital welded, for the reason that gyroscope is moldy, it may be fastened through reballing the gyroscope.
We wish to follow the iPhone motherboard. Put it beneath the Stereo Zoom Microscope to look at the compass and gyroscope, the portions across the compass are excellent, however one of the 0 Ohm resistors across the gyroscope is quite corroded, and two inductors ware additionally quite corroded close to the show socket.
Touch it with tweezers, it fell off simply. We wish to brief attach them. Use QUICK 861DW scorching air remodel station to solder the bounce cord, after which transparent it up.
Install the iPhone and check it, the compass purposes works correctly, the issue has been solved!